calculator.java

import java.util.*;
class add{
    public static void main(String args[]){
        Scanner x = new Scanner(System.in);
        System.out.println("PLEASE ENTER FIRST NUMBER a: ");
        double a = x.nextDouble();
        Scanner y = new Scanner(System.in);
        System.out.println("PLEASE ENTER SECOND NUMBER b: ");
        double b = y.nextDouble();
        System.out.println( + a + " + " + b + " is " + (a + b));
    }
   
}
class subtract{
    public static void main(String args[]){
        Scanner x = new Scanner(System.in);
        System.out.println("PLEASE ENTER FIRST NUMBER a: ");
        double a = x.nextDouble();
        Scanner y = new Scanner(System.in);
        System.out.println("PLEASE ENTER SECOND NUMBER b: ");
        double b = y.nextDouble();
        System.out.println( + a + " - " + b + " is " + (a - b));
    }
   
}
class multiplication {
    public static void main(String args[]){
        Scanner x = new Scanner(System.in);
        System.out.println("PLEASE ENTER FIRST NUMBER a: ");
        double a = x.nextDouble();
        Scanner y = new Scanner(System.in);
        System.out.println("PLEASE ENTER SECOND NUMBER b: ");
        double b = y.nextDouble();
        System.out.println( + a + " X " + b + " is  " + (a * b));
    }
   
}
class division{
    public static void main(String args[]){
        Scanner x = new Scanner(System.in);
        System.out.println("PLEASE ENTER FIRST NUMBER a: ");
        double a = x.nextDouble();
        Scanner y = new Scanner(System.in);
        System.out.println("PLEASE ENTER SECOND NUMBER b: ");
        double b = y.nextDouble();
        System.out.println("quotient of " + a + " / " + b + " is  " + (a / b)+ " and remainder is " +(a % b));
    }
   
}